| Form N-CSR Cover | 6 Months Ended |
| Nov. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | PUTNAM FUNDS TRUST |
| Entity Central Index Key | 0001005942 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Nov. 30, 2024 |
| Shareholder Report | 6 Months Ended | |
| Nov. 30, 2024 USD ($) $ / shares | ||
| Shareholder Report [Line Items] | ||
| Document Type | N-CSRS | |
| Amendment Flag | false | |
| Registrant Name | PUTNAM FUNDS TRUST | |
| Entity Central Index Key | 0001005942 | |
| Entity Investment Company Type | N-1A | |
| Document Period End Date | Nov. 30, 2024 | |
| Class A | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Putnam Dynamic Asset Allocation Equity Fund | |
| Class Name | Class A | |
| No Trading Symbol | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Putnam Dynamic Asset Allocation Equity Fund for the period June 1, 2024, to November 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-internalusefunds-documents . You can also request this information by contacting us at (800) 225-1581 . | |
| Additional Information Phone Number | (800) 225-1581 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-internalusefunds-documents | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment * , † Class A $35 0.66% | [1],[2] |
| Expenses Paid, Amount | $ 35 | |
| Expense Ratio, Percent | 0.66% | |
| Net Assets | $ 21,426,853 | |
| Holdings Count | $ / shares | 650 | [3] |
| Investment Company Portfolio Turnover | 33% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of November 30, 2024) Total Net Assets $21,426,853 Total Number of Portfolio Holdings * 650 Portfolio Turnover Rate 33% | [3] |
| Holdings [Text Block] | [4] | |
| Updated Prospectus Web Address | https://www.franklintempleton.com/regulatory-internalusefunds-documents | |
| Class P | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Putnam Dynamic Asset Allocation Equity Fund | |
| Class Name | Class P | |
| No Trading Symbol | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Putnam Dynamic Asset Allocation Equity Fund for the period June 1, 2024, to November 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-internalusefunds-documents . You can also request this information by contacting us at (800) 225-1581 . | |
| Additional Information Phone Number | (800) 225-1581 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-internalusefunds-documents | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment * , † Class P $31 0.59% | [5],[6] |
| Expenses Paid, Amount | $ 31 | |
| Expense Ratio, Percent | 0.59% | |
| Net Assets | $ 21,426,853 | |
| Holdings Count | $ / shares | 650 | [7] |
| Investment Company Portfolio Turnover | 33% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of November 30, 2024) Total Net Assets $21,426,853 Total Number of Portfolio Holdings * 650 Portfolio Turnover Rate 33% | [7] |
| Holdings [Text Block] | [8] | |
| Updated Prospectus Web Address | https://www.franklintempleton.com/regulatory-internalusefunds-documents | |
| [1] * Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. † Annualized. * Includes derivatives, if applicable. U.S. Money Market Securities, if any, represent the market value weights of cash, short-term securities, and derivative notional offsets in the portfolio. Holdings and allocations may vary over time. * Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. † Annualized. * Includes derivatives, if applicable. U.S. Money Market Securities, if any, represent the market value weights of cash, short-term securities, and derivative notional offsets in the portfolio. Holdings and allocations may vary over time. | ||
| Label | Element | Value |
| Class A | U.S. Large-Cap Equity Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 70.20% |
| Class A | International Equity Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 16.50% |
| Class A | U.S. Small- and Mid-Cap Equity Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 7.70% |
| Class A | Emerging-Markets Equity Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 5.60% |
| Label | Element | Value |
| Class P | U.S. Large-Cap Equity Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 70.20% |
| Class P | International Equity Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 16.50% |
| Class P | U.S. Small- and Mid-Cap Equity Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 7.70% |
| Class P | Emerging-Markets Equity Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 5.60% |
